Pith Number

pith:J4ZVDYQB

pith:2000:J4ZVDYQBPEE2FJVKCUCBBWD2BX

not attested not anchored not stored refs pending

Characterizing the Low-Frequency QPO behavior of the X-ray Nova XTE J1550-564

Gregory J. Sobczak (Harvard), Jeffrey E. McClintock (CfA), Michael P. Muno (MIT), Ronald A. Remillard (MIT)

arxiv:astro-ph/0004215 v1 · 2000-04-15 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J4ZVDYQBPEE2FJVKCUCBBWD2BX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Complex Energy-Dependent Behaviour of Quasi-Periodic Oscillation Observed in GRS 1915+105

Receipt and verification

First computed	2026-07-04T14:10:17.809372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f3351e2017909a2a6aa150410d87a0ddd1a18f69a042928d3d3b83f2b1b7e2b

Aliases

arxiv: astro-ph/0004215 · arxiv_version: astro-ph/0004215v1 · doi: 10.48550/arxiv.astro-ph/0004215 · pith_short_12: J4ZVDYQBPEE2 · pith_short_16: J4ZVDYQBPEE2FJVK · pith_short_8: J4ZVDYQB

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/J4ZVDYQBPEE2FJVKCUCBBWD2BX \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 4f3351e2017909a2a6aa150410d87a0ddd1a18f69a042928d3d3b83f2b1b7e2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0ae071e94db8824aaad82b732bfb2a49d8be475fccdf85fc46191416c916bec",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-04-15T15:33:07Z",
    "title_canon_sha256": "f1e19a778a04d9d56cba2a2fddacee3dd2fe75a5c3b0ca02be2ad451a97e6e73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0004215",
    "kind": "arxiv",
    "version": 1
  }
}